A mother-of-three remains sedated in hospital after she was tied up with a phone cord and brutally bashed during a daylight home invasion in Melbourne.

Police say two intruders broke into the 55-year-old woman's Hillside home at around 11am on Tuesday, bashed her then stole her car.

Marisa Bonacci was home alone when she was confronted by the assailants in the kitchen, one armed with a knife and the other wielding a screwdriver, 9News reports.

Police are conducting a forensic examination on the victim's Volkswagen, which was found with the interior burnt out in Melton on Wednesday.

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Marisa Bonacci was home alone when she was confronted by the assailants in the kitchen, one armed with a knife and the other wielding a screwdriver

Detectives are yet to speak to the woman, who has a suspected broken nose and bruising to her body and head.

'She's in hospital sedated because of her injuries but those are non-life threatening and we haven't had an opportunity to speak to her at this point in time,' Acting Inspector Cameron Reinke told reporters on Wednesday.